MWC 758 c
Astrophysical Synthesis & Habitability Characterization
MWC 758 c is a confirmed unclassified exoplanet orbiting the star MWC 758, located approximately 520.3 light-years (159.54 parsecs) from the Solar System. First announced in 2023 by Large Binocular Telescope Observatory using the Imaging detection technique (resolved directly via high-contrast coronagraphic or interferometric imaging), this world is catalogued in the NASA Exoplanet Archive composite census pending further mass and radius refinement.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 500 K (+227°C / +441°F) and receiving 0.00 S⊕ (~1 W/m²), MWC 758 c orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star MWC 758 is classified as a luminous A-type star of spectral type A8Ve with an effective photospheric temperature of 7,314 K, a radius of 2.0145 R☉, a mass of 1.5 M☉, an estimated bolometric luminosity of 10.419 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.004 Gyr. From Earth, MWC 758 shines at apparent V-band magnitude 8.27 (accessible to binoculars and small amateur telescopes) in the Northern celestial hemisphere.
Discovery Facility: Large Binocular Telescope Observatory · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | MWC 758 |
| Spectral Type | A8Ve |
| Effective Temp (Teff) | 7,314 K |
| Stellar Radius | 2.0145 R☉ |
| Stellar Mass | 1.5000 M☉ |
| Bolometric Luminosity | 10.419 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | 0.004 Gyr |
| Apparent Magnitude | V: 8.270 · G: 8.200 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 100.000000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Insolation Flux | 0.0010 S⊕ (~1 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 520.300 LY (159.537 pc) |